.node--type-page  #page {
     background-image: url(../images/background-halftone-light-purple-25-percent.png);
}

.node--type-book #page,
.node--type-book-cover-page #page {
    background-image: url(../images/background-halftone-light-purple-25-percent.png);
}

.node--type-homepage  #page {
    background-image: url(../images/background-halftone-dark-purple-25.png);
}

.paragraph.dark_purple_textured {
    background-image: url(../images/background-halftone-dark-purple.png);
}

.paragraph.light_purple_textured {
    background-image: url(../images/background-halftone-light-purple.png);
}